Stereo indicating circuit for an FM receiver

Details Stereo indicating circuit for an FM receiver Stereo indicating circuit for an FM receiver

1976-12-15

1978-05-23

Olms, Douglas W.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307100, H04H 500

Patent

active

040912418

ABSTRACT:
A stereo indicating circuit for use with an FM receiver having a multiplex demodulator, a stereo indicator and a stereo-monaural mode selector, the stereo indicating circuit comprising a smoothing circuit having a short time constant for changing the mode of the FM receiver from stereo to monaural and immediately turning off the stereo indicator after the power switch of the FM receiver is turned off by utilizing the sharp voltage drop of said smoothing circuit.

REFERENCES:
patent: 3146311 (1964-08-01), Wolff
patent: 3309465 (1967-03-01), Frank
patent: 3345464 (1967-10-01), Gillett

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